Adjustable tension-bracket for window-shelves.



No. 727,423. PATENTED MAY 5.1903. J. OPPENHEIMER.

ADJUSTABLE TENSION BRACKET FOR WINDOW SHELVES. APPLICATION FILED MAR. 4. 1902.

UNTTT: STATES Patented May 5, 1903.

PATENT OFFICE.

JAMES OPPENHEIMER, OF ASHLAND, NEBRASKA.

SPECIFICATION forming part of Letters Patent No. 727,423, dated May 5, 1903.

Application filed March 4. 1902. Serial No. 96,714- (No model.)

To all whom it ntay concern.-

Be it known that 1, JAMES OPPENHEIMER, a citizen of the United States, residing at Ashland, in the county of Saunders and State of Nebraska, have invented a new and useful Adjustable Tension-B racket for VVindoW- Shelves, of which the following is a specification.

The invention relates to an adjustable win- (low-shelf adapted to be readily applied to windows of different widths and capable of vertical adjustment to arrange it at the desired elevation for supporting plants, vases, and the like.

A further object of the invention is to provide a simple, inexpensive, and efficient clamping-bracket capable of securely gripping a window-casing and of firmly supporting a shelf in a horizontal position.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a window-shelf constructed in accordance with this invention. Fig. 2 is a sectionalview of the same. Fig. 3 is a detail view of one of the resilient brackets.

Like numerals of reference designate corresponding parts in all the figures of the drawlugs.

1 designates a horizontal shelf designed to be arranged across a window,as clearly shown in Fig. 1 of the drawings, and provided at each end with inner and outer perforations 2 and 3,arranged at regular intervals and adapted to receive pins 4: and 5 for securing resilient brackets 6 to the shelf. Each resilient bracket, which is constructed of a single piece of resilient material, consists of'a narrow hori-- tions consist of blades or flanges which ongage the back of the side portions of the window-casing and which are maintained in such engagement when the brackets are placed under tension. The spurs or projections 9 extend into the crack or space between the side portion of the window-frame and the wall of the house and do not have to be embedded in the wood of the window-frame. The inner pin 4 is placed at the outer side of the resilient bracket to form a fulcrum for the same, and the loop is swung outward to place the bracket under tension and is retained in such position by the outer pin 5, which is arranged at the inner side of the loop. The pins engage the loops at the top and bottom thereof, and when the brackets are placed under tension they are securely held in engagement with the window-casing, which is firmly clamped by the arms of the brackets. The arms of the brackets form inclined braces and extend upward and downward from the shelf, which is firmly held at the desired adj ustment.

It will be seen that the shelf is adapted to be readily applied to windows of different widths, that it is capable of ready adjustment to arrange it at the desired elevation, and that the brackets form resilient clamps and also provide upper and lower inclined braces for supporting the shelf.

What I claim is- 1. A device of the class described comprising a shelf, a pair of transversely-disposed clamping brackets having outer engaging portions arranged to clamp a window-frame, and pins mounted on the shelf and arranged at opposite sides of the brackets and fulcruming the same on the shelf and retaining the said brackets in engagement with the window-frame, substantially as described.

2. A device of the class described comprising a shelf designed to be arranged across a window, resilient brackets extending transversel y of the ends of the shelf and fulcrumed thereon and provided with upper and lower inclined arms, and means for securing the brackets in their adjusted position, substantially as described.

3. A device of the class described comprising a shelf, resilient brackets fulcrumed on the shelf and composed of a narrow loop re- ICO ceiving the shelf, and divergent arms forming braces and adapted to clamp a window, and means for securing the brackets at the desired adjustment, substantially as described.

4. A device of the class described comprising a shelf,brackets consisting of narrow loops receiving the shelf, and arms extending from the sides of the loops, and fastening devices for fulcruming the brackets on the shelf and for securing the brackets at the desired adjustment, substantially as described.

5. Adevice of the class described comprising a shelf provided at intervals with inner and outer perforations, resilient brackets JAMES OPPENHEIMER.

Witnesses:

S. L. SEARS, C. W. FULLER, J r. 

